Bible Dictionaries
Stemma

Webster's Dictionary

(1):

(n.) One of the ocelli of an insect. See Ocellus.

(2):

(n.) One of the facets of a compound eye of any arthropod.

Bibliography Information
Webster, Noah. Entry for 'Stemma'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​s/stemma.html. 1828.